NumberResearch Membership · Data 09/18/2026

Recent prefix assignments

27 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
NEW CINGULAR WIRELESS PCS, LLC - DC 27
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
2020-11-23 540-714 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARRENTON VA
2020-11-16 908-457 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2020-11-11 207-601 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEWISTON ME
2020-11-10 681-362 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2020-10-26 551-290 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 KEARNY NJ
2020-10-16 914-398 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OSSINING NY
2020-10-12 272-246 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MT POCONO PA
2020-10-09 757-781 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWPTNWSZN3 VA
2020-10-01 272-247 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDLEBYCTR PA
2020-10-01 814-606 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WESTFIELD PA
2020-09-28 848-296 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
2020-09-22 484-724 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-09-21 667-294 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TOWSON MD
2020-09-10 609-648 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN NJ
2020-09-03 267-921 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN38 PA
2020-09-02 240-736 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAUREL236 MD
2020-08-27 240-574 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRIENDSVL MD
2020-08-25 757-981 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2020-08-17 681-286 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2020-08-14 856-410 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDONFLD NJ
2020-08-14 908-401 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2020-08-05 540-690 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARRENTON VA
2020-07-21 848-293 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
2020-07-02 252-263 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AHOSKIE NC
2020-06-09 351-216 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HAMILTON MA
2020-05-12 681-294 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2020-04-30 607-317 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELMIRA NY
2020-04-08 571-460 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2020-04-08 603-451 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD NH
2020-04-06 413-379 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2020-04-06 774-429 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2020-03-27 475-267 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW HAVEN CT
2020-03-23 774-428 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BROCKTON MA
2020-03-23 857-358 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 QUINCY MA
2020-03-18 475-348 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT
2020-03-09 571-456 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRIANGLE VA
2020-03-09 667-263 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNDALK MD
2020-03-09 667-278 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TOWSON MD
2020-03-05 484-745 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN10 PA
2020-02-18 848-286 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
2020-02-18 862-350 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NJ
2020-02-11 681-279 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2020-02-07 302-277 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW CASTLE DE
2020-01-16 540-783 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAFFORD VA
2020-01-13 631-401 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2019-12-30 223-230 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEW OXFORD PA
2019-12-24 332-220 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
2019-12-24 667-261 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 COLUMBIA MD
2019-12-24 774-422 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BROCKTON MA
2019-12-24 914-383 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSCHSTZN03 NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.